Live incident briefing · Flood

Flash Flood Warning near Pima, AZ

Official warning geography and instructions, rainfall outlook, gauge observations and forecasts, affected places, and source history.

Official source updated
19 hr ago
Briefing status
Active

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Official information and local resources

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route. Remain alert for flooding even in locations not receiving rain. Washes, streams, and rivers can become raging killer currents in a matter of minutes, even from distant rainfall.

NWS Tucson AZ · source Aug 29, 2026, 11:37 PM

In immediate danger? Call 911. Nature Says When is not an emergency service and does not determine whether an area is safe.

Verified context

What the latest evidence says

The Flash Flood Warning has Severe severity and Immediate urgency. This warning covers 2 counties and applies to Pima, AZ, Santa Cruz, AZ.

From the primary source

Official incident details

Displayed directly from the issuing authority, with no generated paraphrase.

At 437 PM MST, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 1.5 inches of rain have fallen. Flooding impacts will continue, but no additional rainfall is expected. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. Some locations that will experience flash flooding include... Sonoita and Elgin. This includes the following highways... Route 82 between mile markers 24 and 27...and between mile markers 30 and 40. Route 83 between mile markers 22 and 34.

NWS Tucson AZ · source Aug 29, 2026, 11:37 PM

Official forecast

NWS weather context

Chance Showers And Thunderstorms86°F · wind 16 mph · gusts 24 mph8/29/2026, 11:00:00 PM
Chance Showers And Thunderstorms81°F · wind 14 mph · gusts 21 mph8/30/2026, 12:00:00 AM
Chance Showers And Thunderstorms80°F · wind 12 mph · gusts 17 mph8/30/2026, 1:00:00 AM
Chance Showers And Thunderstorms76°F · wind 15 mph · gusts 23 mph8/30/2026, 2:00:00 AM
Chance Showers And Thunderstorms73°F · wind 14 mph · gusts 21 mph8/30/2026, 3:00:00 AM
Chance Showers And Thunderstorms72°F · wind 8 mph · gusts 12 mph8/30/2026, 4:00:00 AM

Official gauge and corroborating observation

River and flood-stage context

Babocomari River near Huachuca CityObserved stage 4.4711.1 miles from the stored warning center; proximity does not establish flood cause or impact.
USGS corroborationStage 4.47Provisional USGS data

Source-timed facts

Current incident picture

Values stay attached to the authority and time that supplied them.

Affected areas
Pima, AZ, Santa Cruz, AZ
National Weather Service · source Aug 29, 2026, 11:37 PM
County count
2 counties
National Weather Service · source Aug 29, 2026, 11:37 PM
Official alert
Flash Flood Warning
National Weather Service · source Aug 29, 2026, 11:37 PM
Severity
Severe
National Weather Service · source Aug 29, 2026, 11:37 PM
Ugc county codes
AZC019, AZC023
National Weather Service · source Aug 29, 2026, 11:37 PM
Urgency
Immediate
National Weather Service · source Aug 29, 2026, 11:37 PM
Warning count
1 warnings
National Weather Service · source Aug 29, 2026, 11:37 PM
Represented population
1,107,983 people
U.S. Census Bureau 2020 Decennial Census · source Apr 1, 2020, 12:00 AM

Geographic context

Incident area and nearby places

Map geometry shows the official source shape when available. It does not predict impact outside or inside the line.

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Map-equivalent affected-area text

Pima, AZ; Santa Cruz, AZ

Source center: 31.665, -110.609. A point or perimeter is context, not a safety boundary.

  • Pima, AZ
  • Santa Cruz, AZ

Material revisions

What changed

Only stored fact changes enter this timeline.

  1. Incident first observed.

Provenance and handoffs

Official sources

Open the authority’s page before making an emergency decision.

How this briefing is assembled

Source facts are stored with source and retrieval times. The page renders stored records only. Optional generated context is omitted whenever validation fails and never controls emergency instructions, containment, road status, health guidance, or publication.